Today arrived a few cell samples from Boekel for my cycle life tests and comparsion with other industrial 18650 cells. For some time I was looking for cells with known history with the lowest possible mileage and calendar age.
I have measured nominal capacity/energy at calibrated 4-wire battery tester. I used settings for Panasonic NCR18650BM
settings: nominal capacity test (0.5C charge to 4.2V @ 60mA cut-off - 10minut rest time - 0.2C discharge to 2.5V):
new NCR18650BM: capacity: 3125 mAh, energy: 11.35 Wh
3000km Tesla P85D: capacity: 3120 mAh, energy: 11.32 Wh
settings: cycle life test (0.5C charge to 4.2V @ 100mA cut-off - 10minut rest time - 1C discharge to 2.5V):
new NCR18650BM: capacity: 3038 mAh, energy: 10.67 Wh
3000km Tesla P85D: capacity: 3081 mAh, energy: 10.79 Wh
edit: corrected units
Last edited by Pajda
on Jan 06, 2018 4:23 am, edited 2 times in total.